Question

What is the simplest form of the number?

Answer 1

A. x=4 and x=0
B. x=0
C. x=4 and x=1- ELIMINATE THIS ONE BECAUSE IT IS WRONG
D. x=4

Answer 2

\[\sqrt{5x+5}-\sqrt{x}=3\]
\[\sqrt{5x+5}^2-\sqrt{x}^2=3^2\]
5x+5-x=9
4x=4
x=1
wait what?? maybe i went wrong somewhere..idk but this is what i got

Answer 3

@dg98, (a-b)^2 is NOT a^2 - b^2.

It's a^2 - 2ab + b^2.

It can't be 0 since sqrt5 - sqrt5 = 0 which is not 3.
It's not A nor B, and you eliminated C, so it must be D.
In fact, it is.
Plug it in and check.

Answer 4

i'm confused what you're saying

Answer 5

ohh wait nm i get it

Answer 6

I thought it was D as well, I just wanted to be sure =) Thank you guys!!